Inhibitory effect of G250 nanobody-targeted temsirolimus-loaded nanobubbles on growth of renal cancer cells
in vitro - Journal of Third Military Medical University Vol. 40, Issue 24, Pages: 2229-2235(2018)
- 作者机构：
1.400042 重庆，陆军军医大学(第三军医大学)第三附属医院(野战外科研究所)泌尿外科
2.400038 重庆，陆军军医大学(第三军医大学)第一附属医院超声科
- 作者简介：
- 基金信息：the General Program of National Natural Science Foundation of China(81472399)
DOI：10.16016/j.1000-5404.201807220
CLC： R73-36;R737.11;R944.9Received：31 July 2018，
Revised：2018-10-18，
Published：30 December 2018
- 稿件说明：
移动端阅览
Zhiping YU, Ming HU, Luofu WANG, et al. Inhibitory effect of G250 nanobody-targeted temsirolimus-loaded nanobubbles on growth of renal cancer cells
in vitro [J]. Journal of Third Military Medical University, 2018, 40(24): 2229-2235.Zhiping YU, Ming HU, Luofu WANG, et al. Inhibitory effect of G250 nanobody-targeted temsirolimus-loaded nanobubbles on growth of renal cancer cells
in vitro [J]. Journal of Third Military Medical University, 2018, 40(24): 2229-2235. DOI： 10.16016/j.1000-5404.201807220.
摘要
目的
2
制备G250纳米抗体靶向的携载替西罗莫司的脂质纳米微泡(G250-TEM-NBs)，并联合超声靶向纳米微泡破坏(ultrasound targeted nano-bubble destruction
UTMD)辅助药物递送系统实现对肾癌细胞生长的抑制。
方法
2
采用水化薄膜法，联合机械震荡和静电作用制备G250-TEM-NBs，检测其粒径、ζ电位、包封率和载药效率。体外观察G250-TEM-NBs靶向结合肾癌786-O细胞的能力，通过CCK-8和TUNEL测量G250-TEM-NBs联合UTMD抗肿瘤细胞增殖诱导凋亡效果。
结果
2
G250-TEM-NBs平均粒径和ζ电位分别为(399.67±31.01)nm和(-23.33±2.62)mV，G250-TEM-NBs与肾癌786-O细胞的亲和力明显高于TEM-NBs(
P
＜0.05)，G250-TEM-NBs联合UTMD抗肿瘤细胞增殖能力及诱导肿瘤细胞凋亡作用最强。
结论
2
G250-TEM-NBs联合UTMD能显著抑制肾癌细胞生长，为肾癌靶向治疗提供了一种有效的新方法。
Abstract
Objective
2
To establish a drug delivery system based on G250 nanobody-targeted lipid nanobubbles carrying temsirolimus (G250-TEM-NBs) combined with ultrasound targeted nanobubble destruction (UTMD) and assess its inhibitory effect on the growth of renal cell carcinoma (RCC) cells
in vitro
.
Methods
2
G250-TEM-NBs were prepared using the hydration membrane method combined with mechanical vibration and electrostatic interaction
and the particle size
zeta potential
entrapment efficiency and drug loading efficiency were assessed. The binding ability of G250-TEM-NBs to renal cancer 786-O cells
in vitro
was evaluated
and CCK-8 and TUNEL assays were used to evaluate the growth inhibition and apoptosis-inducing effects of G250-TEM-NBs combined with UTMD in 786-O cells.
Results
2
The av
erage particle size and zeta potential of G250-TEM-NBs was 399.67±31.01 nm and -23.33±2.62 mV
respectively. The affinity of G250-TEM-NBs to 786-O cells was significantly higher than that of TEM-NBs (
P
<
0.05). When combined with UTMD
G250-TEM-NBs showed a strong inhibitory effect on the proliferation and potently induced apoptosis in 786-O cells.
Conclusion
2
G250-TEM-NBs combined with UTMD can significantly inhibit the growth of renal cancer cells
in vitro
which sheds light on a potentially effective new method for targeted therapy of RCC.
关键词
Keywords
references
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